Frame of a patient interface



FIG. 1 is a rear perspective view of a frame;

FIG. 2 is a left side elevational view of the frame of FIG. 1;

FIG. 3 is a right side elevational view of the frame of FIG. 1;

FIG. 4 is a front elevational view of the frame of FIG. 1;

FIG. 5 is a rear perspective view of the frame of FIG. 1;

FIG. 6 is a top elevational view of the frame of FIG. 1; and,

FIG. 7 is a bottom elevational view of the frame of FIG. 1. 

CLAIM The ornamental design for a frame of a patient interface, as shown and described. 